Radioactive Decay & Alpha Decay Flashcards
What is radioactive decay?
When unstable nuclei emit small particles or electromagnetic radiation
What is an alpha particle??
A particle with 2 protons and 2 neutrons like He2+
So, what is the charge of an alpha particle?
2+
So, what is alpha decay?
When an unstable nucleus emits an alpha particle to try to be stable
What atoms do alpha decay occur?
atoms with protons >83
What happens to the unstable parent when they alpha decay?
Makes a daughter with 2 less protons and 2 less neutrons and an alpha particle
Is the unstable parent and the daughter related in alpha decay?
No, the daughter is a different element now.
Why do elements use alpha decay?
To reduce electrostatic force of repulse between protons to stabilize nucleus.
When will an unstable parent stop alpha decaying?
It will continue to make daughters alpha decay until the protons <83
